var mongoose = require('mongoose');
var Comment = require('../models/comment.model')// 引数据模型

// 新增
exports.create = function(req,res,next){
    var comment = new Comment(req.body); // 从req.body里获取参数对象，比如{name:'vane',gender:'男',city:'杭州'....}

    comment.save()
    .then(data=>{
        res.json(data)
    })
    
}

//修改
exports.update = function(req,res,next){
  
    var id = req.params.id; // req.param('id')
    // 现在操作的都是mongoose而不是mongodb
    Comment.findByIdAndUpdate(id,{$set: req.body}, {new:false} )
    .then(data=>{
        res.json(data); // 如果你要返回数据，这个data返回的是你之前修改的那个数据内容
    })
}

//删除
exports.remove = function(req,res,next){
    var id = req.params.id;
    Comment.findByIdAndRemove(id,function(err,doc){
        res.json({msg:'数据删除成功',status:200})
    })
} 


exports.list = function(req,res,next){
    var page = (req.body.page) ? req.body.page : 1;
    var rows = (req.body.rows) ? req.body.rows : 2;

    var queryCondition = {};
    var comment;
    if( req.body.comment && req.body.comment.trim().length>0 ){
        comment = req.body.comment;
        queryCondition = {"comment":new RegExp(comment,'m')}
    }
    if( req.body.cateId && req.body.cateId.trim().length>0 ){
        cateId = req.body.cateId;
        queryCondition = {"cateId":cateId}
    }
    if( req.body.date && req.body.date.trim().length>0 ){
        date = req.body.date;
        queryCondition = {"date":date}
    }
    

    Comment.paginate(queryCondition, { page: parseInt(page), limit: parseInt(rows) }, function(err, result) {
        result.rows = result.docs;
        delete result.docs;

       res.json(result)
    });
}